package com.Stash.Controller;

public class main {
    public static void main(String[] args) {
        //  字符串结尾判断
     String  b="你好类";
     char c ='类';
        char d = b.charAt(b.length()-1);
        if(d!=c){
            b+="类";
        }
        System.out.println(b);

        String one ="4,1,1,1,1";
        String nub ="5";
        System.out.println(one.indexOf(nub)==-1);
    }
}
